Non-puncturable and non-collapsible pneumatic inside tire



"UNITED STATES PATENT omnes.

ODAVILLE YATES, 0F PORTLAND, OREGON.

Specification of Letters Patent.

Patented Dee. 27, 1921.

Application led March 11, 1921. Serial No. 451,522.

matic Inside Tire, of which the following is a s eciiication.

he object of my invention is to provide a novel inside tire of the type named having a much longer life than the' ordinary pneumatic inner tube. I attain the objects of my invention by the mechanism shown in the accompanying drawings, in which- F1gure1 is a section transversely through my invention, the outer casing and rim being Shown in dotted lines; and

Fig'. 2 is a longitudinal section through my invention on a median longitudinal line.

parts in each of the views.

Referring to the accompanying drawings illustrating my inventio-n, I provide a solid reinforcement tread, and an oppositely positioned top solidrubber reinforcement 10 eX- tending around the tire. The reinforcement 6 is rovided with a groove 5. I provide a suita le bottom locking plate 8 countersunk in the solidv rubber reinforcement 10. A longitudinal rib 4 seats `on groove 5 of the outer rubber reinforcement 6. I further provide suitable air passages or channels 3 1n reinforcement 6, and similar air passages or channels 1- in reinforcement 10. I also provide openings 2, as shown in Fig. 1, connecting the air channels 1 with the large approximately -shaped air chamber 7, as shown in Fig. 1. The outer casing A and the rim B, surrounding this inside tire 11 are shown in dotted lines in Fig. 1, and are of conventional construction.

The main air space 7 in the inside tire 11 is inflated with air in the same manner as the ordinary tires now in use are inflated. The air channels 1 .in reinforcement 10 are also inflated by reason of the provision of passages 2 from those channels 1 to the air space The air passages or channels 3, and reinforcement 6, however, are not inflated from airspace 7 ,but are simply sealed up when the tire or tube is finished, which gives them an air pressure of about or 75 unds'. If these' air passages 3 are punc- 'tured it` will have no effect upon the main 56 air space 7 which is substantially separated from the bottom outer surface of the tire by,

j Like characters of reference indicate like the heavy reinforcement 6. This reinforcel ment is of solid rubber and will prevent a puncture unless caused by a long nail or a. blow-out; and in the latter case the longitudinal rib 4 and reinforcement 10 will seat on the longitudinal median groove 5 in reinforcement 6 which will prevent the inside tire from collapsing, since rib 4 and groove 5 are lnormally only one-half inch apart when the inside tire is fully inflated. This construction will also prevent the tire from being thrown from the wheel from collapse of the tire as may be the case with tires now in use when a puncture` or blow-out o'ccurs. In case of a puncture ofthis tire, it is possible to drive almost any distance for repairs without rim-cutting or any further damage to either the inside tire or outer casing.

VWhat I claim is:

1. A non-puncturable and non-collapsible. pneumatic 'inside tire comprising op-positely positioned vheavy reinforcements, one of said reinforcements being disposed adjacent the tread of the other reinforcements along the inner portion of the tire, the tire having a substantially B-Shaped air space intervening between said reinforcements, the median longitudinal portions ofv said reinforcing means being normally spaced only a short distance apart, reinforcements adjacent the tread having independent air passages, said passages not being in communication with the central -shaped air spaces, whereby the puncture of one of the small air spaces will not deflate the tire.

2. In a tire of the class described, the combination of an inside tire having oppositely positioned heavy reinforcements, one of said reinforcements being disposed adjacent the tread portion o :f the inside tire, the tire having a substantially 8-sha d airspace intervening between said rein orcements, the lnedian longitudinal portions of said reinforcements, being normally spaced only a short distance apart and shaped to seat one on the other, the reinforcement on the inner 'side of the tire-having annular passages encirchng the reinforcement, said passages being 1n communication at spaced intervals with the central main air spaces, whereby said inner air pass es are inflated with the inflation of the main air s ace. j

3.11m a tire of t e Yclassdescribed, the combination of a tire having oppositely disposed heavy reinforcements, one disposed along the tread and the other oppositely disposed passages not being in communication with 16 along the inner side of the tire, the tread rethe central air space', and air passages in the inforcement having a median longitudinal inner reinforcement and openings connectgroove, and the inner reinforcement having a ing said last mentioned air passages with the median longitudinal rib shaped to seat on the main air space, substantially as and for the aforementioned groove in case of deflation purposes described, whereby a non-collapsi- 15 of the tire, said groove and said rib normally ble and substantially non-puncturable tire is being spaced only slightly apart, air pasprovided.

sages in the tread relnforoement, said air ODAVILLE YATES. 

